My company has a tech convention every year. Last time I went I played spot the tech person - most people there failed the test (they were former engineers now in management trying to pretend they were still technical). I'm a staff engineer and I was the lowest position person I saw there - not even senior engineers much less the low or mid level engineers that would benefit from talking to the seniors at a tech conference.
I'd categorize both those groups as being "in tech." Even if they're not active developers, they're certainly tech-adjacent especially in the software space.
There are probably counter-examples, but I'm not sure where I'd go if I were, say, an enthusiastic amateur physics or chemistry enthusiast of some sort that would be especially accessible.